APA
(1954). Beacon arithmetic book two part one, book four part two. London, UK: Ginn and Company Limited.
Chicago
1954. Beacon arithmetic book two part one, book four part two. London, UK: Ginn and Company Limited.
Harvard
(1954). Beacon arithmetic book two part one, book four part two. London, UK: Ginn and Company Limited.
MLA
Beacon arithmetic book two part one, book four part two. London, UK: Ginn and Company Limited. 1954.
